CN220909661U - Bridge plug and slip assembly - Google Patents

Abstract

The utility model belongs to the field of oil pipes, in particular to a bridge plug and a slip assembly, which aims at the problems that when the existing slips are abutted, only one-time abutting is carried out, so that the braking efficiency of a device is reduced, the slips are easy to fall back and inconvenient to use, and the utility model provides a scheme which comprises a main pipe, wherein a fixing block is fixedly sleeved in the middle position of the outer wall of the main pipe; the two groups of brake components are arranged outside the main pipe and used for friction between the lifting device and the pipeline, and the two groups of brake components are respectively positioned at two sides of the fixed block.

Description

Bridge plug and slip assembly

Technical Field

The utility model relates to the technical field of oil pipes, in particular to a bridge plug and slip assembly.

Background

In the oilfield development process, bridge plug staged fracturing methods are becoming increasingly widely used. In the method, a cable or a coiled tubing is adopted to gradually lower the bridge plug, and fracturing construction is carried out after the bridge plug is set and hung.

The invention of publication number CN108571299B relates to a bridge plug. The bridge plug comprises a bridge plug body, wherein a slip and a slip driving piece positioned at the upstream of the slip are sleeved on the bridge plug body, and the slip driving piece is connected with the bridge plug body through an elastic anti-withdrawal mechanism. An elastic body is also sleeved on the bridge plug body, and the elastic body is positioned at the downstream of the slips and is abutted against the slips. When the bridge plug is used, after the slips are sat and the slip driving piece is unloaded, the elastic rubber barrel can squeeze the slips, so that the slips are prevented from backing and even are unhooked.

When in use, the bridge plug still has the following defects:

1. When the slips are abutted, only one-time abutting can be performed, so that the braking efficiency of the device is reduced, and further, the slips are easy to fall back, so that the use is inconvenient.

In response to the foregoing, the present document provides a bridge plug and slip assembly.

Disclosure of utility model

The utility model provides a bridge plug and a slip assembly, which solves the defects that in the prior art, when a slip is abutted, only one-time abutment can be carried out, so that the braking efficiency of a device is reduced, the slip is easy to fall back, and the use is inconvenient.

The utility model provides the following technical scheme:

The bridge plug and slip assembly comprises a main pipe, and a fixing block is fixedly sleeved in the middle of the outer wall of the main pipe;

The two groups of brake components are arranged outside the main pipe and used for friction between the lifting device and the pipeline, the two groups of brake components are respectively located at two sides of the fixed block, slip driving pieces and plugs are respectively sleeved at two ends of the main pipe in a sliding mode, and the plugs and the slip driving pieces are respectively located at two sides of the two groups of brake components.

In one possible design, the brake assembly comprises a second hollow arc-shaped seat sleeved on the outer wall of the main pipe, one end, away from the fixed block, of the second hollow arc-shaped seat is fixedly connected with a second round platform block, the outer wall of the main pipe is provided with a second annular sheet, the outer wall of the second annular sheet is provided with a plurality of arc-shaped sheets, and the arc-shaped sheets are matched with the second round platform block.

In one possible design, the outer wall cover of being responsible for is equipped with first hollow arc seat, the one end fixedly connected with third annular piece of first hollow arc seat, one side integrated into one piece of third annular piece has a plurality of second slips, the second slips uses with the arc piece cooperation.

In one possible design, the two ends of the fixed block are fixedly connected with a first round table block, and the first round table block is matched with the second hollow arc-shaped seat for use.

In one possible design, the outer wall of the main pipe is sleeved with a first annular piece, a plurality of first slips are integrally formed on the outer wall of the first annular piece, and two first annular pieces are respectively matched with the slip driving piece and the plug for use.

In one possible design, the slip driver is an axially movable cone sleeve.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.

According to the utility model, the device is sent into the oil pipe, at the moment, the slip driving piece is started, the slip driving piece drives the first annular piece to transversely move, the first annular piece drives the first slips to be mutually far away, the first slips are mutually far away, the inner wall of the oil pipe is abutted against, and meanwhile, the first hollow arc-shaped seat is close to one end of the fixed block, at the moment, the second slips are mutually far away, the inner wall of the oil pipe can be abutted against again, and the stability of the device is improved;

According to the utility model, the first round table block is abutted against the inner wall of the second hollow arc seat, so that the second round table block pushes the plurality of arc pieces to be away from each other, the plurality of arc pieces push the plurality of second slips to be away from each other again, the stability of the device can be improved, when the plug is backflushed, the plug drives the corresponding first slips and the first hollow arc seat to move at the moment, and the stability of the device can be improved through friction between the second slips and the first slips on the other side and the inner wall of the oil pipe;

According to the utility model, the first annular piece can be driven to transversely move by starting the slip driving piece, the first slips are mutually far away to tightly support the inner wall of the oil pipe, and the second slips are mutually far away to tightly support the inner wall of the oil pipe again, so that the stability of the device is improved, and when the plug is subjected to backflushing, the stability of the device can be improved through friction between the second slips and the first slips on the other side and the inner wall of the oil pipe.

Drawings

FIG. 1 is a schematic three-dimensional view of a bridge plug and slip assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic view of an exploded view of a bridge plug and slip assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic view of an exploded view of a first hollow arcuate seat and a fixed block in a bridge plug and slip assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic view of an exploded view of a second hollow arcuate seat and a first hollow arcuate seat of a bridge plug and slip assembly according to an embodiment of the present utility model.

Reference numerals:

1. A main pipe; 2. a slip driving member; 3. a first slip; 4. a second slip; 5. a fixed block; 6. a first hollow arcuate seat; 7. an arc-shaped sheet; 8. a second hollow arc-shaped seat; 9. the first round table block; 10. a first annular sheet; 11. a second round table block; 12. a second annular sheet; 13. a third annular sheet; 14. and (5) plugging.

Detailed Description

Embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled" and "mounted" should be interpreted broadly, and for example, "coupled" may or may not be detachably coupled; may be directly connected or indirectly connected through an intermediate medium. In addition, "communication" may be direct communication or may be indirect communication through an intermediary. Wherein, "fixed" means that the relative positional relationship is not changed after being connected to each other. References to orientation terms, such as "inner", "outer", "top", "bottom", etc., in the embodiments of the present utility model are merely to refer to the orientation of the drawings and, therefore, the use of orientation terms is intended to better and more clearly illustrate and understand the embodiments of the present utility model, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the embodiments of the present utility model.

In embodiments of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the embodiment of the present utility model, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

Example 1

Referring to fig. 1-4, the bridge plug and slip assembly comprises a main pipe 1, wherein a fixing block 5 is fixedly sleeved in the middle of the outer wall of the main pipe 1;

The two sets of brake components, two sets of brake components all set up in the outside of being responsible for 1 and are used for the friction between hoisting device and the pipeline, brake components is including the cover to establish the second hollow arc seat 8 of being responsible for 1 outer wall, the one end fixedly connected with second round platform piece 11 of fixed block 5 is kept away from to the second hollow arc seat 8, the outer wall of being responsible for 1 is provided with second annular piece 12, the outer wall of second annular piece 12 is provided with a plurality of arc pieces 7, arc piece 7 and the cooperation of second round platform piece 11 are used, two sets of brake components are located the both sides of fixed block 5 respectively, the both ends of being responsible for 1 are equipped with slips driving piece 2 and end cap 14 respectively to the slip driving piece 2 is located the both sides of two sets of brake components respectively.

Example 2

Referring to fig. 1-4, the bridge plug and slip assembly comprises a main pipe 1, a fixed block 5 is fixedly sleeved at the middle position of the outer wall of the main pipe 1, a first hollow arc seat 6 is sleeved at the outer wall of the main pipe 1, one end of the first hollow arc seat 6 is fixedly connected with a third annular sheet 13, a plurality of second slips 4 are integrally formed on one side of the third annular sheet 13, the second slips 4 are matched with the arc sheets 7 for use, two ends of the fixed block 5 are fixedly connected with a first round table block 9, the first round table block 9 is matched with the second hollow arc seat 8 for use, a first annular sheet 10 is sleeved on the outer wall of the main pipe 1, a plurality of first slips 3 are integrally formed on the outer wall of the first annular sheet 10, the two first annular sheets 10 are respectively matched with a slip driving piece 2 and a plug 14 for use, the slip driving piece 2 is a taper sleeve capable of moving along the axial direction, meanwhile, the first round table block 9 is abutted against the inner wall of the second hollow arc seat 8, the second round table block 11 pushes the plurality of arc sheets 7 to be separated from each other, the plurality of second round table blocks 7 are pushed by the plurality of second slips 4 to be separated from each other, and then the first slips 4 can be lifted by the corresponding slip device to the first slips 4 and the second slip device and the first slip device 14 can be driven by the first slip device and the plug 4 to be separated from the first slip device and the corresponding plug 4 when the first slip device is separated by the first slip device and the first slip device is 14 and the first slip device is separated by the first slip device and the first plug device and has a corresponding stability device 4 and has a stability device is capable to be separated by the first slip device and can be moved;

The two sets of brake components are all arranged outside the main pipe 1 and used for friction between the lifting device and the pipeline, the brake components comprise a second hollow arc-shaped seat 8 sleeved on the outer wall of the main pipe 1, one end of the second hollow arc-shaped seat 8, which is far away from the fixed block 5, is fixedly connected with a second round table block 11, the outer wall of the main pipe 1 is provided with a second annular piece 12, the outer wall of the second annular piece 12 is provided with a plurality of arc-shaped pieces 7, the arc-shaped pieces 7 are matched with the second round table block 11 for use, the two sets of brake components are respectively located on two sides of the fixed block 5, slip driving pieces 2 and plugs 14 are respectively sleeved at two ends of the main pipe 1 in a sliding manner, the plugs 14 and the slip driving pieces 2 are respectively located on two sides of the two sets of brake components, the device is fed into the oil pipe, at this moment, the slip driving pieces 2 are started, the slip driving pieces 2 drive the first annular piece 10 to transversely move, the first annular piece 10 drive a plurality of first slips 3 to be far away from each other, the first slips 3 are far away from each other, the inner wall of the oil pipe is tightly abutted against one end of the fixed block 5, the first hollow arc-shaped seat 6 is close to the inner wall 4 can be mutually far away from each other, the inner wall is tightly abutted against the inner wall, and stable.

The working principle and the using flow of the technical scheme are as follows:

When the device is used, the device is fed into an oil pipe, at the moment, the slip driving piece 2 is started, the slip driving piece 2 drives the first annular piece 10 to transversely move, the first annular piece 10 drives the first slips 3 to be mutually far away, the first slips 3 are mutually far away, the inner wall of the oil pipe is tightly propped, the first hollow arc-shaped seat 6 is close to one end of the fixed block 5, at the moment, the second slips 4 are mutually far away, the inner wall of the oil pipe can be tightly propped again, and the stability of the device is improved;

Simultaneously, the inner wall of the first round platform block 9 and the inner wall of the second hollow arc seat 8 are abutted tightly, so that the second round platform block 11 pushes the arc-shaped pieces 7 to be far away from each other, the arc-shaped pieces 7 push the second slips 4 to be far away from each other again, and further the stability of the device can be improved, when the plug 14 is subjected to backflushing, the plug 14 drives the corresponding first slips 3 and the first hollow arc seat 6 to move, and further the stability of the device can be improved through friction between the second slips 4 and the first slips 3 on the other side and the inner wall of the oil pipe.

The present utility model is not limited to the above embodiments, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present utility model, and the changes or substitutions are intended to be covered by the scope of the present utility model; embodiments of the utility model and features of the embodiments may be combined with each other without conflict. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (6)

1. Bridge plug and slips assembly, its characterized in that includes: the device comprises a main pipe (1), wherein a fixing block (5) is fixedly sleeved in the middle of the outer wall of the main pipe (1);

The two groups of brake components are arranged outside the main pipe (1) and used for friction between the lifting device and the pipeline, the two groups of brake components are respectively located on two sides of the fixed block (5), slip driving pieces (2) and plugs (14) are respectively sleeved at two ends of the main pipe (1) in a sliding mode, and the plugs (14) and the slip driving pieces (2) are respectively located on two sides of the two groups of brake components.

2. The bridge plug and slip assembly according to claim 1, wherein the brake assembly comprises a second hollow arc-shaped seat (8) sleeved on the outer wall of the main pipe (1), one end, away from the fixed block (5), of the second hollow arc-shaped seat (8) is fixedly connected with a second round table block (11), the outer wall of the main pipe (1) is provided with a second annular sheet (12), the outer wall of the second annular sheet (12) is provided with a plurality of arc-shaped sheets (7), and the arc-shaped sheets (7) are matched with the second round table block (11).

3. The bridge plug and slip assembly according to claim 1, wherein the outer wall of the main pipe (1) is sleeved with a first hollow arc-shaped seat (6), one end of the first hollow arc-shaped seat (6) is fixedly connected with a third annular sheet (13), one side of the third annular sheet (13) is integrally formed with a plurality of second slips (4), and the second slips (4) are matched with the arc-shaped sheet (7).

4. The bridge plug and slip assembly according to claim 1, wherein both ends of the fixed block (5) are fixedly connected with a first round table block (9), and the first round table block (9) is matched with the second hollow arc-shaped seat (8).

5. The bridge plug and slip assembly according to claim 1, wherein the outer wall of the main pipe (1) is sleeved with a first annular piece (10), a plurality of first slips (3) are integrally formed on the outer wall of the first annular piece (10), and the two first annular pieces (10) are respectively matched with the slip driving piece (2) and the plug (14) for use.

6. A bridge plug and slip assembly according to claim 1, wherein the slip driver (2) is an axially movable cone sleeve.